<template>
  <el-dialog title="新增部门" :visible="showDialog" @close="btnCancel">
    <!-- 表单组件  el-form   label-width设置label的宽度   -->
    <!-- 匿名插槽 -->
    <el-form label-width="120px" :model="formData" :rules="rules" ref="deptForm">
      <el-form-item label="部门名称" prop="name">
        <el-input style="width:80%" placeholder="1-50个字符" v-model="formData.name"/>
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input style="width:80%" placeholder="1-50个字符" v-model="formData.code"/>
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select style="width:80%" placeholder="请选择" v-model="formData.manager" @focus="getEmployeeSimple">
          <el-option v-for="item in peoples" :key="item.id" :label="item.username" :value="item.username"/>
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" v-model="formData.introduce"/>
      </el-form-item>
    </el-form>
    <!-- el-dialog有专门放置底部操作栏的 插槽  具名插槽 -->
    <el-row slot="footer" type="flex" justify="center">
      <!-- 列被分为24 -->
      <el-col :span="6">
        <el-button type="primary" size="small" @click="btnOk">确定</el-button>
        <el-button size="small" @click="btnCancel">取消</el-button>
      </el-col>
    </el-row>
  </el-dialog>
</template>

<script>
import { getDepartments ,addDepartments} from '@/api/departments'
import { getEmployeeSimple } from '@/api/employees'

export default {
  name: 'AddDept',
  data() {
    // 自定义检验规则
    const checkNameRepeat = async(rule, value, callback) => {
      const { depts } = await getDepartments()
      const isRept = depts.filter(item => item.pid === this.treeNode.id).some(item => item.name === value)
      isRept ? callback(new Error(`同级部门下已经有${value}的部门了`)) : callback()
    }
    const checkCodeRepeat = async(rule, value, callback) => {
      const { depts } = await getDepartments()
      const isRept = depts.some(item => item.code === value && value)
      isRept ? callback(new Error(`同级部门下已经有${value}的编码了`)) : callback()
    }
    return {
      formData: {
        name: '', // 部门名称
        code: '', // 部门编码
        manager: '', // 部门管理者
        introduce: '' // 部门介绍
      },
      rules: {
        name: [{ required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { trigger: 'blur', validator: checkNameRepeat }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { trigger: 'blur', validator: checkCodeRepeat }
        ],
        manager: [{ required: true, message: '部门负责人不能为空', trigger: 'blur' }],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { trigger: 'blur', min: 1, max: 300, message: '部门介绍要求1-50个字符' }
        ]
      },
      peoples: [] // 定义员工数据
    }
  },
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    treeNode: {
      type: Object,
      default: null
    }
  },
  methods: {
    async getEmployeeSimple() {
      this.peoples = await getEmployeeSimple()
    },
    btnOk() {
      this.$refs.deptForm.validate(async isOk=> {
        if (isOk) {
          // 验证通过
          await addDepartments({ ...this.formData, pid: this.treeNode.id })
          //通知父组件更新数据
          this.$emit('addDepts')
          // 关闭弹窗
          this.$emit('closeDialog')
          this.$message.success('添加成功')
        }
      })
    },
    btnCancel(){
      this.$refs.deptForm.resetFields() // 重置校验字段
    }
  }
}
</script>

<style scoped>

</style>
